{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
                    &          a1         &          a2         &          a3         &          a4         &          a5         &          a6         \\
                    &        b/se         &        b/se         &        b/se         &        b/se         &        b/se         &        b/se         \\
Local returnees (Africa)&       0.172         &       0.173         &       0.190         &       0.151         &       0.167         &       0.229         \\
                    &     (0.291)         &     (0.304)         &     (0.310)         &     (0.313)         &     (0.316)         &     (0.828)         \\
r2                  &       0.086         &       0.099         &       0.140         &       0.098         &       0.132         &       0.222         \\
N                   &    5017.000         &    5017.000         &    5017.000         &    5017.000         &    5017.000         &    5050.000         \\
\end{tabular} }
{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
                    &          b1         &          b2         &          b3         &          b4         &          b5         &          b6         \\
                    &        b/se         &        b/se         &        b/se         &        b/se         &        b/se         &        b/se         \\
Local returnees (Europe)&      -0.900\sym{*}  &      -0.901\sym{**} &      -0.864\sym{*}  &      -1.009\sym{**} &      -1.155\sym{**} &      -5.276\sym{*}  \\
                    &     (0.462)         &     (0.451)         &     (0.450)         &     (0.490)         &     (0.503)         &     (2.766)         \\
r2                  &       0.057         &       0.063         &       0.060         &       0.065         &       0.073         &       0.164         \\
N                   &    5017.000         &    5017.000         &    5017.000         &    5017.000         &    5017.000         &    5050.000         \\
\end{tabular} }
